What is the differential speed of binary and text files?

Question

I am developing a financial application that stores data in a file. I noticed that the input / output of text files is rather slow. If I switch to binary format, how much faster will it be? 2x? 10x? I could write my own time tests, but I hope someone else did it. Thanks in advance.

Answer 1

Thanks for your thoughts, but since I'm looking for numbers, I decided to run my own tests.

Here are my results:

                    emulator   droid
integer text         5.478    0.028
integer binary       0.112    0.002
double text          6.546    0.187
double binary        0.117    0.003

integer text/bin      49       14

double text/bin       56       62

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Answer 2

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Answer 3

File I / O is always much slower than doing things in RAM. Thus, using a binary file format will not help if your binary file is smaller than a text file that stores the same data. Actual acceleration will depend on how smaller your custom binary format is.